tree maintenance

Based on root tree and Maximal Weighted Independent Set, we propose the EACT ( Energy-Aware Clustering Tree) algorithm and the maintenance and update algorithm of the cluster tree backbone network.

文中利用图论中极大权独立集和根树的概念给出一种求簇树骨干网的EACT算法及对该骨干网的维护和更新算法。

Such heavy branches tend to grow vigorously in later years and render difficult the maintenance of an acceptable tree shape.

这种强壮枝在以后年代里易于旺盛生长，给保持植株合理的树型造成困难。

The services include landscape design and planting, plant production, horticultural research, tree maintenance and conservation.

服务范围包括园景设计和种植 、 植物培植 、 园艺研究, 以至树木的料理和保护.

The system's flexibility and generalization is greatly improved by the development of a maintenance modular of index coding in tree structure.

开发树状结构方式的指标编码维护模块，可以极大地提高系统的通用性和灵活性；

In the scene one, the virtual switches are not isolated. This paper simulates the span tree election of the network topology between the virtual switches inside of physical switch, failure recovery, data frames forwarding and Mac address mapping table maintenance.

在场景一中，虚拟交换机之间未进行隔离，对物理交换机内部虚拟交换机之间网络拓扑的生成树选举、故障恢复、数据帧的转发和Mac地址映射表的维护进行仿真实现。